Mixtures are combinations of different materials or substances that, unlike composite goods, don't necessarily form discrete components. Examples include alloys, blends of textile fibers, and chemical mixtures.
Under GRI 2(b), references in a heading to a material include mixtures or combinations of that material with others. When goods consist of more than one material or substance, classification follows GRI 3.
Common mixture classification scenarios:
- Textile blends — Section XI Note 2 specifies that a textile classified by the heading covering the predominant fiber by weight. A fabric of 60% cotton and 40% polyester is classified as cotton fabric.
- Metal alloys — Section XV Note 5 governs alloys; an alloy is generally classified as if it consisted wholly of the metal whose weight predominates.
- Chemical mixtures — Chapter 38 contains specific provisions for mixed chemicals, including "chemical products and preparations of the chemical or allied industries, not elsewhere specified or included."